Documentation/devicetree/bindings/net/renesas,ravb.txt

   1 * Renesas Electronics Ethernet AVB
   2
   3 This file provides information on what the device node for the Ethernet AVB
   4 interface contains.
   5
   6 Required properties:
   7 - compatible: "renesas,etheravb-r8a7790" if the device is a part of R8A7790 SoC.
   8               "renesas,etheravb-r8a7791" if the device is a part of R8A7791 SoC.
   9               "renesas,etheravb-r8a7792" if the device is a part of R8A7792 SoC.
  10               "renesas,etheravb-r8a7793" if the device is a part of R8A7793 SoC.
  11               "renesas,etheravb-r8a7794" if the device is a part of R8A7794 SoC.
  12               "renesas,etheravb-r8a7795" if the device is a part of R8A7795 SoC.
  13               "renesas,etheravb-rcar-gen2" for generic R-Car Gen 2 compatible interface.
  14               "renesas,etheravb-rcar-gen3" for generic R-Car Gen 3 compatible interface.
  15
  16               When compatible with the generic version, nodes must list the
  17               SoC-specific version corresponding to the platform first
  18               followed by the generic version.
  19
  20 - reg: offset and length of (1) the register block and (2) the stream buffer.
  21 - interrupts: A list of interrupt-specifiers, one for each entry in
  22               interrupt-names.
  23               If interrupt-names is not present, an interrupt specifier
  24               for a single muxed interrupt.
  25 - phy-mode: see ethernet.txt file in the same directory.
  26 - phy-handle: see ethernet.txt file in the same directory.
  27 - #address-cells: number of address cells for the MDIO bus, must be equal to 1.
  28 - #size-cells: number of size cells on the MDIO bus, must be equal to 0.
  29 - clocks: clock phandle and specifier pair.
  30 - pinctrl-0: phandle, referring to a default pin configuration node.
  31
  32 Optional properties:
  33 - interrupt-parent: the phandle for the interrupt controller that services
  34                     interrupts for this device.
  35 - interrupt-names: A list of interrupt names.
  36                    For the R8A7795 SoC this property is mandatory;
  37                    it should include one entry per channel, named "ch%u",
  38                    where %u is the channel number ranging from 0 to 24.
  39                    For other SoCs this property is optional; if present
  40                    it should contain "mux" for a single muxed interrupt.
  41 - pinctrl-names: pin configuration state name ("default").
  42 - renesas,no-ether-link: boolean, specify when a board does not provide a proper
  43                          AVB_LINK signal.
  44 - renesas,ether-link-active-low: boolean, specify when the AVB_LINK signal is
  45                                  active-low instead of normal active-high.
  46
  47 Example:
  48
  49         ethernet@e6800000 {
  50                 compatible = "renesas,etheravb-r8a7795", "renesas,etheravb-rcar-gen3";
  51                 reg = <0 0xe6800000 0 0x800>, <0 0xe6a00000 0 0x10000>;
  52                 interrupt-parent = <&gic>;
  53                 interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
  54                              <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
  55                              <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
  56                              <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
  57                              <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
  58                              <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
  59                              <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>,
  60                              <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>,
  61                              <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>,
  62                              <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>,
  63                              <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
  64                              <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>,
  65                              <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
  66                              <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>,
  67                              <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
  68                              <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
  69                              <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
  70                              <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
  71                              <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
  72                              <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>,
  73                              <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>,
  74                              <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>,
  75                              <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>,
  76                              <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>,
  77                              <GIC_SPI 63 IRQ_TYPE_LEVEL_HIGH>;
  78                 interrupt-names = "ch0", "ch1", "ch2", "ch3",
  79                                   "ch4", "ch5", "ch6", "ch7",
  80                                   "ch8", "ch9", "ch10", "ch11",
  81                                   "ch12", "ch13", "ch14", "ch15",
  82                                   "ch16", "ch17", "ch18", "ch19",
  83                                   "ch20", "ch21", "ch22", "ch23",
  84                                   "ch24";
  85                 clocks = <&cpg CPG_MOD 812>;
  86                 power-domains = <&cpg>;
  87                 phy-mode = "rgmii-id";
  88                 phy-handle = <&phy0>;
  89
  90                 pinctrl-0 = <&ether_pins>;
  91                 pinctrl-names = "default";
  92                 renesas,no-ether-link;
  93                 #address-cells = <1>;
  94                 #size-cells = <0>;
  95
  96                 phy0: ethernet-phy@0 {
  97                         rxc-skew-ps = <900>;
  98                         rxdv-skew-ps = <0>;
  99                         rxd0-skew-ps = <0>;
 100                         rxd1-skew-ps = <0>;
 101                         rxd2-skew-ps = <0>;
 102                         rxd3-skew-ps = <0>;
 103                         txc-skew-ps = <900>;
 104                         txen-skew-ps = <0>;
 105                         txd0-skew-ps = <0>;
 106                         txd1-skew-ps = <0>;
 107                         txd2-skew-ps = <0>;
 108                         txd3-skew-ps = <0>;
 109                         reg = <0>;
 110                         interrupt-parent = <&gpio2>;
 111                         interrupts = <11 IRQ_TYPE_LEVEL_LOW>;
 112                 };
 113         };